20 May 2025
1h 10m

Why Do Most Diets Fail? The Science of Nutrient Deficiencies | Ty Beal PhD

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The Dr. Gabrielle Lyon Show

In this episode of the podcast, Dr. Gabrielle Lyon interviews Dr. Ty Beal, a global nutrition researcher, about the state of nutrition worldwide. They discuss the challenges of micronutrient deficiencies, which affect both low-income countries and surprisingly, a significant portion of the population in high-income countries like the U.S. They explore the reasons behind these deficiencies, including the prevalence of ultra-processed foods, the focus on breeding crops for yield rather than nutrient value, and the impact of food policies and marketing. They also touch on potential solutions such as food fortification, biofortification, promoting diverse and minimally processed whole foods, and the need for government intervention to improve the nutritional quality of meals provided in schools and hospitals.

Outlines

Part 1: Introduction to Global Nutrition

Part 2: Specific Deficiencies and Dietary Guidelines

Part 3: Improving the Global Food System

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